WO2000079118A1 - Solenoid valve - Google Patents

Solenoid valve Download PDF

Info

Publication number
WO2000079118A1
WO2000079118A1 PCT/DE2000/001362 DE0001362W WO0079118A1 WO 2000079118 A1 WO2000079118 A1 WO 2000079118A1 DE 0001362 W DE0001362 W DE 0001362W WO 0079118 A1 WO0079118 A1 WO 0079118A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic core
valve
thread
housing
magnet
Prior art date
Application number
PCT/DE2000/001362
Other languages
German (de)
French (fr)
Inventor
Achim Meisiek
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to DE50005975T priority Critical patent/DE50005975D1/en
Priority to JP2001505444A priority patent/JP2003502600A/en
Priority to US09/762,972 priority patent/US6339366B1/en
Priority to EP00938524A priority patent/EP1105637B1/en
Publication of WO2000079118A1 publication Critical patent/WO2000079118A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
    • F02M25/0836—Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0651—One-way valve the fluid passing through the solenoid coil

Definitions

  • the invention relates to a solenoid valve, in particular for tank ventilation in motor vehicles according to the preamble of claim 1.
  • valves are known for example from DE 42 44 113 AI and from DE 196 11 886 AI and from DE 198 52 980.5.
  • the magnetic core is axially displaced for adjustment purposes by screwing it into the thread in the magnet housing.
  • Such an adjustment can also be seen, for example, from US 5,424,704, but there the magnetic core is screwed into the coil carrier made of plastic.
  • plastic layers such as Tuflok or an adhesive, to the thread.
  • security against rotation by subsequent welding caulking the two threads together is known.
  • the object of the invention is to provide a valve of the generic type which is largely insensitive to temperature fluctuations and vibrational stresses and to tolerance fluctuations between the magnetic core and the magnetic housing, and to prevent rotation of the magnetic core, which can be produced in a simple manner.
  • An embodiment of a valve shown in the figure in longitudinal section, is used for metered admixing of fuel volatilized from the fuel tank of a (not shown) mixture-compressing spark-ignition internal combustion engine into the internal combustion engine, e.g. into an intake pipe or, in the case of direct petrol injection, directly into a cylinder of the internal combustion engine and is part of a fuel evaporation retention system of an internal combustion engine, not shown in any more detail.
  • the structure and function of such fuel evaporation restraint systems can be found, for example, in "Bosch Technical Instruction Motor Management Motronic", 2nd Edition, August 1993, pages 48 and 49.
  • a tank ventilation valve and its function can be seen, for example, from DE 42 44 113 AI and from DE 196 11 886 AI, to which reference is made here.
  • the tank ventilation valve has a two-part valve housing 10 with a cup-shaped housing part 101 and a cap-shaped housing part 102 that closes this.
  • the housing part 101 carries an inflow connection 11 for connection to a ventilation connection of the fuel tank or to a storage tank for the volatilized fuel which is connected to it and filled with activated carbon.
  • the housing part 102 carries an outflow connection 12 for connection to the intake pipe of the internal combustion engine.
  • the inlet connection 11 and the outlet connection 12 are, for example, with one another aligned axially in each case in the housing parts 101, 102.
  • An electromagnet 13 is arranged in the interior of the pot-shaped housing part 101.
  • the electromagnet 13 has a pot-shaped magnet housing 14 with a coxial, hollow cylindrical magnetic core 15 penetrating the bottom of the pot and a cylindrical excitation coil 16 which is seated on a plastic coil carrier 17 which surrounds the magnetic core 15 in the magnet housing 14.
  • a plastic coil carrier 17 which surrounds the magnetic core 15 in the magnet housing 14.
  • the magnetic core 15 can thus be displaced very precisely axially by turning in the magnet housing 14 for adjustment purposes as a result of the metal-metal screw connection.
  • the magnetic core 15 is aligned with the inflow nozzle 11, so that the volatilized fuel flowing in here flows directly through the magnetic core 15.
  • a second external thread section 35 is arranged on the magnetic core 15 in the area of the coil carrier 17, which section forms its own thread in the coil carrier 17 without cutting when the magnetic core 15 is screwed into the internal thread 19 arranged on the threaded connector 18.
  • the coil carrier 17 has a carrier sleeve 36 which has, for example, a stepped through opening 37, the diameter of which is, for example, larger than the diameter of the first external thread section 21 of the magnet core 15 is, so that here the magnetic core 15 is first inserted from above with the end having the first external thread section 21 through the through opening 37 in order to come into contact with the internal thread 19 of the threaded connector 19.
  • the second external thread section 35 When the first external thread section 21 is screwed into the threaded connector 18, the second external thread section 35 then cuts into the through opening 37 of the carrier sleeve 36 and forms an anti-rotation device.
  • Such an anti-rotation device has a high strength, it is easy to manufacture and enables easily adjustable loosening torques.
  • additional materials for securing against rotation which are known from the prior art, such as adhesive layers or plastic layers, can be omitted.
  • the edge of the magnet housing 14 is angled to form an annular support flange 20.
  • a valve seat body, which forms a yoke 22 of the electromagnet 13, is accommodated in the support flange 20 and covers the magnet housing 14 and rests on the support flange 20 at the edge.
  • valve openings are provided which can be closed by means of a valve member 27 which is arranged between the yoke 22 and the magnetic core 15 and serves as a magnet armature.
  • An axial through opening 28 is provided centrally in the valve member 27 coaxially with the hollow cylindrical magnetic core 15, through which volatilized fuel coming from the inflow connection 11 can reach the outflow connection 12 when the valve openings are open.
  • the magnetic one Valve member 27 made of conductive material is arranged spring-loaded in the valve closing direction in the direction of the outflow connector 12.
  • the stroke of the valve member 27 is adjusted by the axial adjustment of the magnetic core 15.
  • the metal-metal screw connection of the magnetic core 15 to the threaded connector 18 results in only negligibly small changes in the valve member stroke even when the temperature changes.
  • the plastic-metal screw connection between the magnet armature 15 and the carrier sleeve 36 causes an increase in the anti-rotation device when the temperature changes due to the different expansion coefficients.

Abstract

A solenoid valve, especially for tank ventilation in motor vehicles, comprising at least one valve opening and a valve member which cooperates with the at least one opening for the release and closure thereof, whereby said valve member forms the armature of an electromagnet and is placed opposite a magnetic core of the electromagnet. An operating coil is arranged on a carrier which is disposed inside the housing of the magnet and which surrounds the magnetic core. A thread is provided inside the housing. Said thread is used to screw a first section of the outer thread of the magnetic core. The invention is characterized in that a second outer thread section is arranged on the magnetic core, thus forming a thread lead in the coil carrier when the magnetic core is screwed in.

Description

Magnetventilmagnetic valve
Stand der TechnikState of the art
Die Erfindung betrifft ein Magnetventil, insbesondere zur Tankentlüftung bei Kraftfahrzeugen nach der Gattung des Anspruchs 1.The invention relates to a solenoid valve, in particular for tank ventilation in motor vehicles according to the preamble of claim 1.
Derartige Ventile gehen beispielsweise aus der DE 42 44 113 AI sowie aus der DE 196 11 886 AI sowie aus der DE 198 52 980.5 hervor. Der Magnetkern wird durch Eindrehen in das Gewinde in dem Magnetgehause zu Justierzwek- ken axial verschoben. Eine derartige Justage geht beispielsweise auch aus der US 5.424.704 hervor, jedoch wird dort der Magnetkern in dem aus Kunststoff bestehenden Spulenträger verschraubt. Um nach der Justage eine Verdrehsicherung vorzusehen, ist es bekannt, auf das Gewinde Kunststoffschichten, wie z.B. Tuflok oder einen Kleber aufzutragen. Darüber hinaus sind Verdrehsicherungen durch nachträgliches Verschweißen, Verstemmen der beiden Gewinde miteinander bekannt.Such valves are known for example from DE 42 44 113 AI and from DE 196 11 886 AI and from DE 198 52 980.5. The magnetic core is axially displaced for adjustment purposes by screwing it into the thread in the magnet housing. Such an adjustment can also be seen, for example, from US 5,424,704, but there the magnetic core is screwed into the coil carrier made of plastic. In order to provide an anti-rotation device after the adjustment, it is known to apply plastic layers, such as Tuflok or an adhesive, to the thread. In addition, security against rotation by subsequent welding, caulking the two threads together is known.
Derartige Verdrehsicherungen erfordern zusätzliche Verfahrensschritte zur Herstellung des Magnetkerns und verursachen daher Zusatzkosten. Darüber hinaus sind stark schwankende Losdrehmomente durch Toleranzschwankungen des Magnetkerns und des topfförmigen Magnetgehäuses sowie der Kunststoff-, insbesondere Tuflok- oder Klebeschicht problematisch.Such anti-rotation devices require additional process steps for the production of the magnetic core and therefore cause additional costs. In addition, strongly fluctuating loosening torques are problematic due to tolerance fluctuations in the magnetic core and the cup-shaped magnet housing, as well as the plastic, in particular Tuflok or adhesive layer.
Schließlich ist eine derartige Verdrehsicherung auch empfindlich gegen Temperaturschwankungen und Schwingungsbeanspruchungen .Finally, such an anti-rotation device is also sensitive to temperature fluctuations and vibration stresses.
Aufgabe der Erfindung ist es, bei einem Ventil der gattungsgemäßen Art eine gegenüber Temperaturschwankungen und Schwingungsbeanspruchungen sowie gegenüber Toleranzschwankungen zwischen Magnetkern und Magnetgehause weitestgehend unempfindliche Justiermöglichkeiten und Verdrehsicherung des Magnetkerns, die auf einfache Weise herzustellen ist, zu ermöglichen.The object of the invention is to provide a valve of the generic type which is largely insensitive to temperature fluctuations and vibrational stresses and to tolerance fluctuations between the magnetic core and the magnetic housing, and to prevent rotation of the magnetic core, which can be produced in a simple manner.
Vorteile der Erfindung Diese Aufgabe wird bei einem Magnetventil der eingangs beschriebenen Art durch die Merkmale des Anspruchs 1 gelöst.Advantages of the invention This object is achieved in a solenoid valve of the type described in the opening paragraph by the features of claim 1.
Durch den weiteren Außengewindeabschnitt an dem hohlzy- lindrischen Magnetkern, der sich vorteilhafterweise spanfrei seinen eigenen Gewindegang in dem Spulenträger formt und sich dort verdrehsicher verpreßt, wird auf einfach herzustellende Weise eine optimale Verdrehsicherung erzielt, wobei durch den Wegfall der zum Stand der Technik bekannten Klebe- oder Kunststoffschichten nur noch die Toleranzen von zwei Komponenten für die Verdrehsicherung berücksichtigt werden müssen, die im Hinblick auf die Herstellung prozeßsicherer gehalten werden können. Darüber hinaus weist eine derartige Verdrehsicherung gut einstellbare Losdrehmomente auf. Sie weist darüber hinaus eine wesentlich höhere Festigkeit auf, als eine dünne Kunststoff- oder Klebeschicht, die bei aus dem Stand der Technik bekannten Verdrehsicherungen zum Einsatz kommt. Die Justiergenauigkeit bleibt durch die Verschraubung des Magnetkerns im metallenen Magnetgehause erhalten.Due to the further external thread section on the hollow cylindrical magnetic core, which advantageously forms its own thread in the coil carrier without cutting and is pressed there against rotation, an optimal protection against rotation is achieved in a simple manner, with the elimination of the adhesives known from the prior art. or plastic layers only the tolerances of two components for the anti-rotation must be taken into account, which can be kept more reliable with regard to the production. In addition, such an anti-rotation device has easily adjustable loosening torques. It also has a much higher strength than a thin plastic or adhesive layer, which is used in the anti-rotation devices known from the prior art. The adjustment accuracy is maintained by screwing the magnetic core into the metal magnet housing.
Zeichnungdrawing
Weitere Vorteile und Merkmale der Erfindung sind Gegenstand der nachfolgenden Beschreibung sowie der zeichnerischen Darstellung eines Ausführungsbeispiels. In der einzigen Figur ist schematisch ein Längsschnitt durch ein erfindungsgemäßes Ventil dargestellt. Beschreibung der AusführungsbeispieleFurther advantages and features of the invention are the subject of the following description and the drawing of an exemplary embodiment. In the single figure, a longitudinal section through an inventive valve is shown schematically. Description of the embodiments
Ein Ausführungsbeispiel eines Ventils, in der Figur im Längsschnitt dargestellt, dient zum dosierten Zumischen von aus dem Brennstofftank einer (nicht dargestellten) gemischverdichtenden fremdgezündeten Brennkraftmaschine verflüchtigtem Brennstoff in die Brennkraftmaschine, z.B. in ein Ansaugrohr oder bei einer Benzindirekteinspritzung direkt in einen Zylinder der Brennkraftmaschine und ist Teil eines nicht näher dargestellten Brennstoffverdunstungs-Rückhaltesystems einer Brennkraftmaschine. Der Aufbau und die Funktion derartiger Brennstoffverdunstungs-Rückhaltesysteme ist beispielsweise der "Bosch Technische Unterrichtung Motormanagement Motronic", 2. Ausgabe, August 1993, Seiten 48 und 49 entnehmbar. Ein Tankentlüftungsventil und dessen Funktion geht beispielsweise aus der DE 42 44 113 AI sowie aus der DE 196 11 886 AI, auf die vorliegend Bezug genommen wird, hervor.An embodiment of a valve, shown in the figure in longitudinal section, is used for metered admixing of fuel volatilized from the fuel tank of a (not shown) mixture-compressing spark-ignition internal combustion engine into the internal combustion engine, e.g. into an intake pipe or, in the case of direct petrol injection, directly into a cylinder of the internal combustion engine and is part of a fuel evaporation retention system of an internal combustion engine, not shown in any more detail. The structure and function of such fuel evaporation restraint systems can be found, for example, in "Bosch Technical Instruction Motor Management Motronic", 2nd Edition, August 1993, pages 48 and 49. A tank ventilation valve and its function can be seen, for example, from DE 42 44 113 AI and from DE 196 11 886 AI, to which reference is made here.
Das Tankentlüftungsventil weist ein zweiteiliges Ventilgehäuse 10 mit einem topfför igen Gehäuseteil 101 und einem diesen abschließenden kappenförmigen Gehäuseteil 102 auf. Der Gehäuseteil 101 trägt einen Zuströmstutzen 11 zum Anschließen an einen Entlüftungsstutzen des Brennstofftanks oder an einen diesem nachgeschalteten, mit Aktivkohle gefüllten Speicher für den verflüchtigten Brennstoff. Der Gehäuseteil 102 trägt einen Abströmstutzen 12 zum Anschließen an das Ansaugrohr der Brennkraftmaschine. Der Zuströmstutzen 11 und der Abströmstutzen 12 sind beispielsweise miteinander fluchtend jeweils axial in den Gehäuseteilen 101, 102 angeordnet. Im Inneren des topfförmigen Gehäuseteils 101 ist ein Elektromagnet 13 angeordnet.The tank ventilation valve has a two-part valve housing 10 with a cup-shaped housing part 101 and a cap-shaped housing part 102 that closes this. The housing part 101 carries an inflow connection 11 for connection to a ventilation connection of the fuel tank or to a storage tank for the volatilized fuel which is connected to it and filled with activated carbon. The housing part 102 carries an outflow connection 12 for connection to the intake pipe of the internal combustion engine. The inlet connection 11 and the outlet connection 12 are, for example, with one another aligned axially in each case in the housing parts 101, 102. An electromagnet 13 is arranged in the interior of the pot-shaped housing part 101.
Der Elektromagnet 13 weist ein topfförmiges Magnetgehause 14 mit einem den Topfboden durchdringenden, koxialen, hohlzylindrischen Magnetkern 15 und eine zylindrische Erregerspule 16 auf, die auf einem Spulenträger 17 aus Kunststoff sitzt, der im Magnetgehause 14 den Magnetkern 15 umschließt. Am Boden des metallenen Magnetgehäuses 14 ist ein nach außen vorspringender Ge- windestutzen 18 mit einem Innengewinde 19 ausgebildet, das mit einem ersten Außengewindeabschnitt 21 des hohlzylindrischen Magnetkerns 15 verschraubt ist. Der Magnetkern 15 kann damit durch Drehen im Magnetgehause 14 zu Justierzwecken infolge der Metall-Metall- Verschraubung sehr exakt axial verschoben werden. Der Magnetkern 15 fluchtet mit dem Zuströmstutzen 11, so daß der hier einströmende, verflüchtigte Brennstoff direkt den Magnetkern 15 durchströmt.The electromagnet 13 has a pot-shaped magnet housing 14 with a coxial, hollow cylindrical magnetic core 15 penetrating the bottom of the pot and a cylindrical excitation coil 16 which is seated on a plastic coil carrier 17 which surrounds the magnetic core 15 in the magnet housing 14. At the bottom of the metal magnet housing 14 there is an outwardly projecting threaded connector 18 with an internal thread 19 which is screwed to a first external thread section 21 of the hollow cylindrical magnetic core 15. The magnetic core 15 can thus be displaced very precisely axially by turning in the magnet housing 14 for adjustment purposes as a result of the metal-metal screw connection. The magnetic core 15 is aligned with the inflow nozzle 11, so that the volatilized fuel flowing in here flows directly through the magnetic core 15.
Um eine Verdrehsicherung zu realisieren, ist auf dem Magnetkern 15 im Bereich des Spulenträgers 17 ein zweiter Außengewindeabschnitt 35 angeordnet, der sich beim Eindrehen des Magnetkerns 15 in das an dem Gewindestutzen 18 angeordnete Innengewinde 19 einen eigenen Gewindegang in dem Spulenträger 17 spanfrei formt. Der Spulenträger 17 hat dabei eine Trägerhülse 36, die eine beispielsweise gestufte Durchgangsöffnung 37 aufweist, deren Durchmesser beispielsweise größer als der Durchmesser des ersten Außengewindeabschnitts 21 des Magnet- kerns 15 ist, so daß hierbei der Magnetkern 15 von oben zunächst mit dem den ersten Außengewindeabschnitt 21 aufweisenden Ende durch die Durchgangsöffnung 37 gesteckt wird, um mit dem Innengewinde 19 des Gewindestutzens 19 in Berührung zu kommen. Beim Einschrauben des ersten Außengewindeabschnitts 21 in den Gewindestutzen 18 schneidet sich dann der zweite Außengewindeabschnitt 35 in die Durchgangsöffnung 37 der Trägerhülse 36 und bildet eine Verdrehsicherung. Eine derartige Verdrehsicherung weist eine hohe Festigkeit auf, sie ist einfach herzustellen und ermöglicht gut einstellbare Losdrehmomente. Insbesondere können zusätzliche Werkstoffe zur Verdrehsicherung, die aus dem Stand der Technik bekannt sind, wie z.B. Klebeschichten oder Kunststoffschichten entfallen.In order to implement an anti-rotation device, a second external thread section 35 is arranged on the magnetic core 15 in the area of the coil carrier 17, which section forms its own thread in the coil carrier 17 without cutting when the magnetic core 15 is screwed into the internal thread 19 arranged on the threaded connector 18. The coil carrier 17 has a carrier sleeve 36 which has, for example, a stepped through opening 37, the diameter of which is, for example, larger than the diameter of the first external thread section 21 of the magnet core 15 is, so that here the magnetic core 15 is first inserted from above with the end having the first external thread section 21 through the through opening 37 in order to come into contact with the internal thread 19 of the threaded connector 19. When the first external thread section 21 is screwed into the threaded connector 18, the second external thread section 35 then cuts into the through opening 37 of the carrier sleeve 36 and forms an anti-rotation device. Such an anti-rotation device has a high strength, it is easy to manufacture and enables easily adjustable loosening torques. In particular, additional materials for securing against rotation, which are known from the prior art, such as adhesive layers or plastic layers, can be omitted.
Der Rand des Magnetgehäuses 14 ist zu einem ringförmigen Auflageflansch 20 abgewinkelt. Im Auflageflansch 20 ist ein ein Rückschlußjoch 22 des Elektromagneten 13 bildender Ventilsitzkörper aufgenommen, der das Magnetgehause 14 abdeckt und randseitig auf dem Auflageflansch 20 aufliegt. In dem den Ventilsitzkörper bildenden Rückschlußjoch 22 sind Ventilöffnungen vorgesehen, die mittels eines zwischen dem Rückschlußjoch 22 und dem Magnetkern 15 angeordneten und als Magnetanker dienenden Ventilgliedes 27 verschließbar sind. Zentral im Ventilglied 27 ist koaxial zum hohlzylindrischen Magnetkern 15 eine axiale Durchgangsöffnung 28 vorgesehen, durch die vom Zuströmstutzen 11 herkommender, verflüchtigter Brennstoff bei geöffneten Ventilöffnungen zum Abströmstutzen 12 gelangen kann. Das aus magnetisch leitendem Material hergestellte Ventilglied 27 ist federbelastet in Ventilschließrichtung in Richtung des Abströmstutzens 12 angeordnet.The edge of the magnet housing 14 is angled to form an annular support flange 20. A valve seat body, which forms a yoke 22 of the electromagnet 13, is accommodated in the support flange 20 and covers the magnet housing 14 and rests on the support flange 20 at the edge. In the yoke 22 which forms the valve seat body, valve openings are provided which can be closed by means of a valve member 27 which is arranged between the yoke 22 and the magnetic core 15 and serves as a magnet armature. An axial through opening 28 is provided centrally in the valve member 27 coaxially with the hollow cylindrical magnetic core 15, through which volatilized fuel coming from the inflow connection 11 can reach the outflow connection 12 when the valve openings are open. The magnetic one Valve member 27 made of conductive material is arranged spring-loaded in the valve closing direction in the direction of the outflow connector 12.
Durch die axiale Verstellung des Magnetkerns 15 wird der Hub des Ventilgliedes 27 einjustiert. Durch die Me- tall-Metall-Verschraubung des Magnetkerns 15 am Gewindestutzen 18 ergeben sich auch bei Temperaturwechseln nur vernachlässigbar kleine Änderungen des Ventilgliedhubes. Demgegenüber bewirkt die Kunststoff-Metall- Verschraubung zwischen Magnetanker 15 und Trägerhülse 36 bei Temperaturwechsel aufgrund der unterschiedlichen Ausdehnungskoeffizienten eine Erhöhung der Verdrehsicherung. The stroke of the valve member 27 is adjusted by the axial adjustment of the magnetic core 15. The metal-metal screw connection of the magnetic core 15 to the threaded connector 18 results in only negligibly small changes in the valve member stroke even when the temperature changes. In contrast, the plastic-metal screw connection between the magnet armature 15 and the carrier sleeve 36 causes an increase in the anti-rotation device when the temperature changes due to the different expansion coefficients.

Claims

Patentansprüche claims
1. Magnetventil, insbesondere zur Tankentlüftung bei Kraftfahrzeugen, mit wenigstens einer Ventilöffnung und mit einem zur Freigabe und zum Verschließen mit der wenigstens einen Ventilöffnung zusammenwirkenden Ventilglied (27), das einen Magnetanker eines Elektromagneten (13) bildend gegenüber einem Magnetkern (15) des Elektromagneten (13) angeordnet ist, wobei eine Erregerspule (16) auf einem Spulenträger (17) angeordnet ist, der in einem Magnetgehause (14) angeordnet ist und den Magnetkern (15) umschließt, und wobei in dem Magnetgehause (14) ein Gewinde (19) vorgesehen ist, das mit einem ersten Außengewindeabschnitt (21) des Magnetkerns (15) verschraubt ist, dadurch gekennzeichnet, daß an dem Magnetkern (15) ein zweiter Außengewindeabschnitt (35) angeordnet ist, der beim Einschrauben des Magnetkerns (15) in das Magnetgehause (14) einen Gewindegang in dem Spulenträger (17) formt.1. solenoid valve, in particular for tank ventilation in motor vehicles, with at least one valve opening and with a valve member (27) which cooperates with the at least one valve opening and which forms a magnet armature of an electromagnet (13) relative to a magnetic core (15) of the electromagnet (13), wherein an excitation coil (16) is arranged on a coil support (17) which is arranged in a magnet housing (14) and surrounds the magnet core (15), and wherein a thread (19 ) is provided, which is screwed to a first external thread section (21) of the magnetic core (15), characterized in that a second external thread section (35) is arranged on the magnetic core (15) and is screwed into the magnetic housing when the magnetic core (15) is screwed in (14) forms a thread in the coil carrier (17).
2. Ventil nach Anspruch 1, dadurch gekennzeichnet, daß der zweite Außengewindeabschnitt (35) den Gewindegang in dem Spulenträger (17) spanfrei formt. 2. Valve according to claim 1, characterized in that the second external thread section (35) forms the thread in the coil carrier (17) without cutting.
PCT/DE2000/001362 1999-06-19 2000-04-29 Solenoid valve WO2000079118A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE50005975T DE50005975D1 (en) 1999-06-19 2000-04-29 MAGNETIC VALVE
JP2001505444A JP2003502600A (en) 1999-06-19 2000-04-29 Magnet valve
US09/762,972 US6339366B1 (en) 1999-06-19 2000-04-29 Magnet valve
EP00938524A EP1105637B1 (en) 1999-06-19 2000-04-29 Solenoid valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19928207A DE19928207A1 (en) 1999-06-19 1999-06-19 Magnetic valve for venting automobile fuel tank has magnetic core provided with second screw thread for forming screw thread in coil former as it is screwed into magnet housing
DE19928207.2 1999-06-19

Publications (1)

Publication Number Publication Date
WO2000079118A1 true WO2000079118A1 (en) 2000-12-28

Family

ID=7911906

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/001362 WO2000079118A1 (en) 1999-06-19 2000-04-29 Solenoid valve

Country Status (7)

Country Link
US (1) US6339366B1 (en)
EP (1) EP1105637B1 (en)
JP (1) JP2003502600A (en)
KR (1) KR100752063B1 (en)
DE (2) DE19928207A1 (en)
RU (1) RU2217622C2 (en)
WO (1) WO2000079118A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10249161B3 (en) * 2002-10-22 2004-01-29 Robert Bosch Gmbh Device for setting an armature stroke of a solenoid valve
JP4296081B2 (en) * 2003-12-09 2009-07-15 シーケーディ株式会社 solenoid valve
JP4482762B2 (en) * 2005-05-26 2010-06-16 Ｓｍｃ株式会社 Poppet type 2-port solenoid valve
DE102005049663A1 (en) * 2005-10-18 2007-04-26 Thomas Magnete Gmbh electromagnet
US20080000456A1 (en) * 2006-06-30 2008-01-03 Siemens Canada Limited Cost-optimized canister purge valve
DE102008020042A1 (en) * 2008-04-21 2009-10-22 Pierburg Gmbh Solenoid valve
KR101274113B1 (en) 2009-09-01 2013-06-13 한국전자통신연구원 Magnetic microvalve using metal ball and manufacturing method thereof
WO2012016827A1 (en) * 2010-08-05 2012-02-09 Fluid Automation Systems S.A. Solenoid valve with a two-part core
DE202012009367U1 (en) * 2012-09-28 2012-10-24 Bürkert Werke GmbH Magnetic core of a solenoid valve and solenoid valve
TWI532534B (en) * 2015-04-30 2016-05-11 友達光電股份有限公司 Adjustable nozzle device and operation method thereof
US11754196B2 (en) * 2018-10-22 2023-09-12 Johnson & Johnson Surgical Vision, Inc. Electromagnetic actuation of elastomeric valve for fluid flow control
US11915866B2 (en) * 2021-07-29 2024-02-27 Woodward, Inc. Enhanced safety coil for SOGAV

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3652054A (en) * 1970-06-19 1972-03-28 Interlab Inc Magnetic drain valves
US5089977A (en) * 1989-02-10 1992-02-18 Heidelberger Druckmaschinen Ag Process for controlling the inking of printed products and apparatus for performing the process
DE4244113A1 (en) 1992-12-24 1994-06-30 Bosch Gmbh Robert Valve for the metered introduction of volatilized fuel into an intake duct of an internal combustion engine
US5424704A (en) 1993-06-16 1995-06-13 Sagem Allumage Solenoid valve with a tubular metallic core
US5624150A (en) * 1993-08-09 1997-04-29 Multimatic, Inc. Hinge fastening structure and method of creating a hinge pillar joint

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037704A (en) * 1975-07-03 1977-07-26 Ncr Corporation Actuator for a wire matrix printer and method of making
DE19611886A1 (en) * 1996-03-26 1997-10-02 Bosch Gmbh Robert magnetic valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3652054A (en) * 1970-06-19 1972-03-28 Interlab Inc Magnetic drain valves
US5089977A (en) * 1989-02-10 1992-02-18 Heidelberger Druckmaschinen Ag Process for controlling the inking of printed products and apparatus for performing the process
DE4244113A1 (en) 1992-12-24 1994-06-30 Bosch Gmbh Robert Valve for the metered introduction of volatilized fuel into an intake duct of an internal combustion engine
US5424704A (en) 1993-06-16 1995-06-13 Sagem Allumage Solenoid valve with a tubular metallic core
US5624150A (en) * 1993-08-09 1997-04-29 Multimatic, Inc. Hinge fastening structure and method of creating a hinge pillar joint

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Bosch Technische Unterrichtung Motormanagement Motronic, 2. Ausgabe", August 1993, pages: 48 - 49

Also Published As

Publication number Publication date
KR20010072485A (en) 2001-07-31
RU2217622C2 (en) 2003-11-27
DE19928207A1 (en) 2000-12-21
JP2003502600A (en) 2003-01-21
EP1105637A1 (en) 2001-06-13
US6339366B1 (en) 2002-01-15
DE50005975D1 (en) 2004-05-13
EP1105637B1 (en) 2004-04-07
KR100752063B1 (en) 2007-08-28

Similar Documents

Publication Publication Date Title
WO1992001862A1 (en) Valve for the metered addition of volatilized fuel to the fuel/air mixture in an internal-combustion engine
WO1996035052A1 (en) Valve for the metered introduction of vaporised fuel
EP1105637B1 (en) Solenoid valve
EP2156046B1 (en) Armature stroke adjustment for solenoid valve
WO1993006360A1 (en) Electromagnetically operable injection valve
WO1999010648A1 (en) Fuel injection valve
EP0914552A1 (en) Valve for proportioned supply of volatilized fuel
WO2000012889A1 (en) Valve for the introduction of metered doses of volatilized fuel
DE3328467A1 (en) ELECTROMAGNETICALLY ACTUABLE VALVE
EP0496844A1 (en) Method of adjusting a valve, and valve which can be adjusted by this method.
EP1108134B1 (en) Fuel injection valve
WO1999066239A1 (en) Electromagnetic valve
DE10133218C2 (en) Method and device for adjusting the magnetic stroke on fuel injectors
WO2000029738A1 (en) Valve for the controlled introduction of volatilized fuel
DE60105382T2 (en) Fuel injection valve for an internal combustion engine
EP1753955B1 (en) Fuel injection valve
DE19533742A1 (en) Adsorption filter for a fuel evaporation retention system of a fuel tank of an internal combustion engine
EP3204629A1 (en) Proportional valve that can be actuated electromagnetically
EP1115969B1 (en) Valve for the dosed introduction of a volatilized combustible fuel into the intake line of an internal combustion engine
WO2002068812A1 (en) Fuel injection valve comprising an adjusting bush
EP3141737B1 (en) Valve for metering a fluid
DE102010012651B4 (en) exhaust aftertreatment device
EP2082126B1 (en) Valve assembly for metering a flowing medium
EP1688612A1 (en) Fuel injector

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP KR RU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

WWE Wipo information: entry into national phase

Ref document number: 2000938524

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 1020017001908

Country of ref document: KR

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 09762972

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 2000938524

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1020017001908

Country of ref document: KR

WWG Wipo information: grant in national office

Ref document number: 2000938524

Country of ref document: EP